Magazine-camera



UNITED STATES PATENT EEicE.

PETER BERGGREN, OF LAKE CITY, MINNESOTA.

MAGAZINE-CAMERA.

SPECIFICATION forming part of Letters Patent No. 595,285, dated December 14, i897. Application led March Z6, 1897. Serial No. 629,389. (No model.)

'of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. A

This invention relates to magazine-cameras; and the object of the same is to provide an improved camera in which a number of plates may be positioned and successively exposed and afterward deposited in a removable re ceiver, the parts being operated from the exterior of the camera.

The invention also consists in providing an indicating means for registering the number of plates exposed, the same being so arranged as to be visible from the outside of the camera.

The invention consists in the novel features of construction hereinafter fully described, claimed, and illustrated by the accompanying drawings, in which*- Figure 1 isla side elevation of my camera. Fig. 2 is a similar view with the side wall removed. Fig. 3 is a top plan view of one of the plate-receivers, showing the plate-holder in position therein.

rlhe camera consists cf an outer casing the interior of which is divided into two compartments by the central partition l. Iositioned upon this partition in the upper compartment formed thereby is the plate receiver or reservoir 2, which is provided upon the outer surface of its side wall with a rack 5, the teeth of which are adistance apart equal to the thickness of the plate and plate-holder. This rack is provided with its teeth on the lower edge thereof and is secured in position upon the reservoir by the screws i.

Pivoted at one end to the inner side of the outer casing, in line with the rack 3, is the short lever 5. The dog 6 is pivcted to the end of this lever and is adapted to engage the teeth or notches of the rack. Pivoted intermediate the ends of the lever is the operating-rod 7, which extends through the board 8, to which the lens is attached, and projects through an opening in the outer casing, where it is provided with a but-ton or knob 9. The spring l0 is attached to the inner wall of the casing and bears against the dog to hold it in engagement with the teeth of the rack. The dog is provided with an inclined surface ll, which engages a projection l2 in the casing, so that when the dog is in engagement with the notches in the rack the forward movement of the receiver will be prevented. A coiled spring 13 connects the lever with the lens-board S and serves to return the same to its normal position after having been operated by the rod 7. It will be understood that when the push-rod 7 is operated the dog will be moved upward, its inclined surface sliding on the projection l2, and the dog will engage the next notch or tooth in the rack. As soon as the push-rod is released the spring draws the lever to its normal position and moves the reservoir one notch or space.

The under side of the `top of the casing is provided with a series of notches ll, and piv oted upon the upper rear end of the reservoir is a dog or pawl l5, which is adapted to engage the notches and prevent the backward movement of the reservoir. A spring 16 bears upon and holds the pawl in engagement with the notches.

Along the side wall of the reservoir, on the outer surface thereof, are numerals which are adapted to pass before a glass or other transparent opening 17 in the casing and register the number of plates which have been exposed. This upper reservoir has no bottom, and upon the inner surface of its side walls are the notches or grooves 1S, which are of the same shape and sizc as the plate-holder 19, which in this instance is il-shaped, al though of course the same may be square or of any desired shape. The object is simply to form the grooves of the same contour as the frame of the plate-holders, so that they may slide therein. t will be understood that the grooves are the same distance apart as the notches in the rack, se that by each movement of the dog a plate-holder is brought to the focus-point.

An opening 2O is formed in the partition l, the same being located just in advance of the focus-point of the camera. In the lowercompartment is the reservoir or receiver 2l,which is similar in construction to the reservoir 2 ICO with the following exceptions: The rack-bar on this reservoir has the notches in its upper edge, and the position of the short lever, the dog, and the spring is reversed, as will appear from the drawings. This reservoir is provided with a series ot' numerals which pass before the opening 17 in the outer casing, which opening is controlled by the slide l0, pivoted intermediate its ends to the outer surface of the casing.

The outer easing is provided with a cover or lid 22, by means of which access is had to the upper plate-receiver, and the bottom of the easing is provided with a similar lid 23, by means of which access is obtained to the lower receiver.

The operation ot my camera is as follows: The receiver 2 is '[illed with the plates in the dark room and inserted within the camera, the dog engaging the first notch in the racln bar. The lower reservoir 2l is positioned in a similar manner, and the top and bottom lids close securely. ln this position the ilirst plate in the series is ready for exposure. After the same has been exposed the button f) is pressed, which moves the reservoir 2 for ward and brings the next plate to the foeusing-point. The tirst plate and holder drops through the opening 2O in the partition and into the :lirst groove in the receiver beneath,I The puslbbutton of the receiver must then be operated to bring the receiver in position for receiving the nent plate. Thus it willbe understood that by operating the push-but tons the plates in the upper reservoir are successively brought to the exposure-point and successively received by the receiver beneath. By this construction there is no necessityT for gaining access to the camera after the plate-holder is iilled., its capacity being varied, as desired, as the operation of bringing the plates to the focusing-point and conveying them to the receiver beneath is accomplished 'from thc exterior of the camera.

It will be understood that as the two receivers move within the casin the number of the pla-te being exposed is indicated by the upper reservoir through the opening in the casing, and the groove in the lower reservoir bearing the corresponding number can always be brought te the proper position, its number being indicated through a similar opening in the casing.

My improvement may be applied to any camera, and its size and exact arrangement may be varied without departing from the spirit ot my invention.

Having tl us fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A camera, comprising an outer casing, a partition within the same dividing it into two compartments, reservoirs positioned in the respective compartments, said reservoirs con'nnunicating with each other through the partition, racks upon the reservoirs, levers pivoted to the inner side of the casing, dogs carried by the levers and adapted to engage the notches of the racks, and means for operating the levers to cause the dogs to successively engage the teeth of the rack for moving the reservoirs, substantially as and for the purpose set forth.

A camera, comprising an outer easing, a partition within the casing dividing the same into two compartments, reservoirs positioned within the respective compartments, the upper reservoir having no bottom wall and the lower reservoir being open at its top, the partition provided with an opening through which communication established between the two reservoirs, racks upon the reservoirs, levers pivoted at one end to the inner side of the casing, dogs pivoted at the opposite ends of the levers and adapted to engage the teeth of the racks, push-rods pivoted at one end to the levers intermediate their ends and extending to the exterior of the casing, whereby the dogs are caused to s ccessively engage the teeth of the iacl;-bai's by the movement of the push-rods, and means for returning the levers and dogs to their normal positions, the parts operating substantially as set forth.

3. A camera comprising a easing, a partition within the casing dividing the same into an upper and lower compartment, reservoirs within the respective compartments, the upper reservoir being open at -its bottom and front end and the lower reservoir being open. at its top, racks secured to the sides olf the reservoir, the teeth in the racks being a distance apart equal to the thickness of the plate and plate-holder, levers pivoted at one end te the inner sides ot the casing, dogs pivoted to the opposite ends of the levers and adapted to engage the teeth of the rack-bars, springs for holding the dogs in engagement with the raclcbar, springs attached at one end to the levers and at their opposite ends to the Casin g for turning the levers to their normal positions,the reservoirs provided with a com muni* cation through the partition just in advance of the :focusing-point o the camera, and means for operating the levers to cause the dogs to successively engage the notches of the rackn bars for moving the reservoirs, the parts operating substantially as set forth.

et. A camera comprising easing, a partition dividing the same into two compartments, reservoirs positioned within the compartments, the upper reservoir bein g open at its bottom and front end, the lower reservoir open at its top grooves upon the inner surfaces ot' the sides of the reservoirs corresponding in shape te the plate-holders to be positioned therein, racl-bars upon the reservoirs, the teeth in the raclbbars being a distance apart equal to the thickness of the plate-holders and plates, the partition provided with an opening establishing` communication between the upper and lower compartments, notches upon the inner surface of the top and bottom of the easing, pawls or dogs pivoted to the reservoirs and adapted to engage the notches, springs IIO ige

holding the dogs in engagement therewith, levers pivoted at one end to the inner side of the easing, dogs pivoted to the levers and adapted to engage teeth in the rack-bars, push-rods pivoted to the levers and extending through the outer Wall of the easing, and means for returning the levers to Jtheir normal positions after being operated by the push-bar, theparts operatin g substantially as set forth.

5. A camera comprising an outer easing, a partition Within the saine dividing it into two compartments, reservoirs adapted to move Within the compartments, lids in the top and bottom of the easing through which the reser vors may be inserted and Withdrawn, the sides of the reservoirs provided with indicatingnuinerals which are adapted to move behind specification in the presence of two subserib- 3o ing Witnesses.

METER BERGGREN,

TVitnessesi FRANK A. ANDERSON, CHAns. J. EnIoKsoN, 

